/**
 * 营销自动化API路由
 * 处理内容管理、活动管理、数据分析和平台统计等功能
 */

import { Router, Request, Response } from 'express';
import { v4 as uuidv4 } from 'uuid';

const router = Router();

// 模拟数据存储（实际应用中应使用数据库）
let contents: any[] = [];
let campaigns: any[] = [];
let publishTasks: any[] = [];
let platformMetrics: any = {};

/**
 * POST /api/marketing/content
 * 创建内容
 */
router.post('/content', async (req: Request, res: Response) => {
  try {
    const { title, description, type, media_urls, tags, topics, target_audience } = req.body;
    
    if (!title || !description || !type) {
      return res.status(400).json({
        success: false,
        error: '缺少必要参数'
      });
    }
    
    const content = {
      id: uuidv4(),
      title,
      description,
      type,
      media_urls: media_urls || [],
      tags: tags || [],
      topics: topics || [],
      target_audience: target_audience || [],
      created_at: new Date().toISOString(),
      updated_at: new Date().toISOString()
    };
    
    contents.push(content);
    
    res.json({
      success: true,
      data: content
    });
  } catch (error: any) {
    console.error('创建内容失败:', error);
    res.status(500).json({
      success: false,
      error: '创建内容失败'
    });
  }
});

/**
 * GET /api/marketing/content/:id
 * 获取内容详情
 */
router.get('/content/:id', async (req: Request, res: Response) => {
  try {
    const { id } = req.params;
    
    const content = contents.find(c => c.id === id);
    if (!content) {
      return res.status(404).json({
        success: false,
        error: '内容不存在'
      });
    }
    
    res.json({
      success: true,
      data: content
    });
  } catch (error: any) {
    console.error('获取内容详情失败:', error);
    res.status(500).json({
      success: false,
      error: '获取内容详情失败'
    });
  }
});

/**
 * GET /api/marketing/content
 * 获取内容列表
 */
router.get('/content', async (req: Request, res: Response) => {
  try {
    const { page = 1, pageSize = 20, type, tags } = req.query;
    
    let filteredContents = contents;
    
    // 按类型筛选
    if (type) {
      filteredContents = filteredContents.filter(c => c.type === type);
    }
    
    // 按标签筛选
    if (tags) {
      const tagArray = Array.isArray(tags) ? tags : [tags];
      filteredContents = filteredContents.filter(c => 
        tagArray.some(tag => c.tags.includes(tag))
      );
    }
    
    // 分页
    const startIndex = (Number(page) - 1) * Number(pageSize);
    const endIndex = startIndex + Number(pageSize);
    const paginatedContents = filteredContents.slice(startIndex, endIndex);
    
    res.json({
      success: true,
      data: {
        contents: paginatedContents,
        total: filteredContents.length,
        page: Number(page),
        pageSize: Number(pageSize)
      }
    });
  } catch (error: any) {
    console.error('获取内容列表失败:', error);
    res.status(500).json({
      success: false,
      error: '获取内容列表失败'
    });
  }
});

/**
 * POST /api/marketing/campaigns
 * 创建营销活动
 */
router.post('/campaigns', async (req: Request, res: Response) => {
  try {
    const { name, description, start_date, end_date, target_platforms, content_ids, budget, status } = req.body;
    
    if (!name || !start_date || !end_date || !target_platforms || !content_ids) {
      return res.status(400).json({
        success: false,
        error: '缺少必要参数'
      });
    }
    
    const campaign = {
      id: uuidv4(),
      name,
      description: description || '',
      start_date,
      end_date,
      target_platforms,
      content_ids,
      budget: budget || 0,
      status: status || 'draft',
      metrics: {
        total_reach: 0,
        total_engagement: 0,
        total_clicks: 0,
        total_conversions: 0,
        cost_per_click: 0,
        conversion_rate: 0,
        roi: 0
      },
      created_at: new Date().toISOString(),
      updated_at: new Date().toISOString()
    };
    
    campaigns.push(campaign);
    
    res.json({
      success: true,
      data: campaign
    });
  } catch (error: any) {
    console.error('创建营销活动失败:', error);
    res.status(500).json({
      success: false,
      error: '创建营销活动失败'
    });
  }
});

/**
 * GET /api/marketing/campaigns
 * 获取营销活动列表
 */
router.get('/campaigns', async (req: Request, res: Response) => {
  try {
    const { status, page = 1, pageSize = 20 } = req.query;
    
    let filteredCampaigns = campaigns;
    
    // 按状态筛选
    if (status) {
      filteredCampaigns = filteredCampaigns.filter(c => c.status === status);
    }
    
    // 分页
    const startIndex = (Number(page) - 1) * Number(pageSize);
    const endIndex = startIndex + Number(pageSize);
    const paginatedCampaigns = filteredCampaigns.slice(startIndex, endIndex);
    
    res.json({
      success: true,
      data: {
        campaigns: paginatedCampaigns,
        total: filteredCampaigns.length,
        page: Number(page),
        pageSize: Number(pageSize)
      }
    });
  } catch (error: any) {
    console.error('获取营销活动列表失败:', error);
    res.status(500).json({
      success: false,
      error: '获取营销活动列表失败'
    });
  }
});

/**
 * POST /api/marketing/campaigns/:id/metrics
 * 更新活动指标
 */
router.post('/campaigns/:id/metrics', async (req: Request, res: Response) => {
  try {
    const { id } = req.params;
    const metrics = req.body;
    
    const campaignIndex = campaigns.findIndex(c => c.id === id);
    if (campaignIndex === -1) {
      return res.status(404).json({
        success: false,
        error: '活动不存在'
      });
    }
    
    campaigns[campaignIndex].metrics = metrics;
    campaigns[campaignIndex].updated_at = new Date().toISOString();
    
    res.json({
      success: true,
      data: campaigns[campaignIndex]
    });
  } catch (error: any) {
    console.error('更新活动指标失败:', error);
    res.status(500).json({
      success: false,
      error: '更新活动指标失败'
    });
  }
});

/**
 * GET /api/marketing/platform-metrics
 * 获取平台指标数据
 */
router.get('/platform-metrics', async (req: Request, res: Response) => {
  try {
    const { platform, content_ids } = req.query;
    
    if (!platform || !content_ids) {
      return res.status(400).json({
        success: false,
        error: '缺少必要参数'
      });
    }
    
    // 模拟平台指标数据
    const metrics = {
      reach: Math.floor(Math.random() * 100000) + 10000,
      engagement: Math.floor(Math.random() * 10000) + 1000,
      clicks: Math.floor(Math.random() * 5000) + 500,
      conversions: Math.floor(Math.random() * 500) + 50
    };
    
    res.json({
      success: true,
      data: metrics
    });
  } catch (error: any) {
    console.error('获取平台指标数据失败:', error);
    res.status(500).json({
      success: false,
      error: '获取平台指标数据失败'
    });
  }
});

/**
 * POST /api/marketing/content-recommendations
 * 获取内容推荐
 */
router.post('/content-recommendations', async (req: Request, res: Response) => {
  try {
    const { platform, user_profile } = req.body;
    
    if (!platform) {
      return res.status(400).json({
        success: false,
        error: '缺少平台参数'
      });
    }
    
    // 根据平台生成不同的推荐
    let recommendation;
    
    switch (platform) {
      case 'douyin':
        recommendation = {
          content_type: 'video',
          optimal_time: '19:00-21:00',
          suggested_tags: ['母婴好物', '新手妈妈', '宝宝用品', '育儿心得'],
          trending_topics: ['新手妈妈必备好物', '宝宝辅食制作', '育儿神器推荐'],
          target_audience: ['25-35岁女性', '新手妈妈', '育儿爱好者'],
          estimated_reach: 50000,
          confidence_score: 0.85
        };
        break;
        
      case 'xiaohongshu':
        recommendation = {
          content_type: 'image',
          optimal_time: '20:00-22:00',
          suggested_tags: ['母婴', '好物推荐', '种草', '宝妈日常'],
          trending_topics: ['母婴好物分享', '宝宝成长记录', '育儿经验'],
          target_audience: ['20-35岁女性', '准妈妈', '新手妈妈'],
          estimated_reach: 30000,
          confidence_score: 0.78
        };
        break;
        
      default:
        recommendation = {
          content_type: 'mixed',
          optimal_time: '18:00-21:00',
          suggested_tags: ['母婴', '育儿', '好物'],
          trending_topics: ['育儿心得', '母婴用品'],
          target_audience: ['年轻父母'],
          estimated_reach: 20000,
          confidence_score: 0.7
        };
    }
    
    res.json({
      success: true,
      data: recommendation
    });
  } catch (error: any) {
    console.error('获取内容推荐失败:', error);
    res.status(500).json({
      success: false,
      error: '获取内容推荐失败'
    });
  }
});

/**
 * POST /api/marketing/analytics-report
 * 生成分析报告
 */
router.post('/analytics-report', async (req: Request, res: Response) => {
  try {
    const { period, platforms } = req.body;
    
    if (!period || !platforms) {
      return res.status(400).json({
        success: false,
        error: '缺少必要参数'
      });
    }
    
    // 生成模拟分析报告
    const report = {
      period: period,
      platform_performance: {} as any,
      audience_insights: {
        demographics: {
          age_groups: {
            '18-24': 15,
            '25-34': 45,
            '35-44': 30,
            '45+': 10
          },
          gender: {
            female: 75,
            male: 25
          },
          locations: {
            '一线城市': 40,
            '二线城市': 35,
            '三线城市': 25
          }
        },
        interests: ['母婴用品', '育儿知识', '健康养生', '家庭生活', '美食烹饪'],
        behavior_patterns: {
          peak_hours: ['19:00-21:00', '21:00-23:00'],
          active_days: ['周末', '工作日晚上'],
          content_preferences: ['视频', '图文', '直播']
        }
      },
      content_performance: {
        best_performing_types: ['视频', '图文合集', '产品测评'],
        optimal_posting_times: ['19:00-20:00', '21:00-22:00'],
        trending_topics: ['新手妈妈必备', '宝宝辅食', '育儿神器', '亲子互动']
      },
      recommendations: [
        '增加视频内容比例，视频内容互动率更高',
        '优化发布时间，建议在19:00-21:00发布',
        '关注热门话题，提高内容曝光度',
        '加强与粉丝互动，提升用户粘性',
        '定期分析数据，调整内容策略'
      ]
    };
    
    // 为每个平台生成性能数据
    platforms.forEach((platform: string) => {
      report.platform_performance[platform] = {
        posts_count: Math.floor(Math.random() * 100) + 20,
        total_reach: Math.floor(Math.random() * 500000) + 100000,
        total_engagement: Math.floor(Math.random() * 50000) + 10000,
        engagement_rate: (Math.random() * 10 + 2).toFixed(2),
        top_performing_content: [
          '新手妈妈必备好物推荐',
          '宝宝辅食制作教程',
          '育儿心得分享'
        ]
      };
    });
    
    res.json({
      success: true,
      data: report
    });
  } catch (error: any) {
    console.error('生成分析报告失败:', error);
    res.status(500).json({
      success: false,
      error: '生成分析报告失败'
    });
  }
});

/**
 * POST /api/marketing/publish-task
 * 创建发布任务
 */
router.post('/publish-task', async (req: Request, res: Response) => {
  try {
    const { content_id, platforms, schedule_time } = req.body;
    
    if (!content_id || !platforms || !Array.isArray(platforms)) {
      return res.status(400).json({
        success: false,
        error: '缺少必要参数'
      });
    }
    
    const task = {
      id: uuidv4(),
      content_id,
      platforms,
      schedule_time: schedule_time || null,
      status: 'pending',
      results: [],
      created_at: new Date().toISOString()
    };
    
    publishTasks.push(task);
    
    res.json({
      success: true,
      data: task
    });
  } catch (error: any) {
    console.error('创建发布任务失败:', error);
    res.status(500).json({
      success: false,
      error: '创建发布任务失败'
    });
  }
});

/**
 * GET /api/marketing/publish-task/:id
 * 获取发布任务状态
 */
router.get('/publish-task/:id', async (req: Request, res: Response) => {
  try {
    const { id } = req.params;
    
    const task = publishTasks.find(t => t.id === id);
    if (!task) {
      return res.status(404).json({
        success: false,
        error: '任务不存在'
      });
    }
    
    res.json({
      success: true,
      data: task
    });
  } catch (error: any) {
    console.error('获取发布任务状态失败:', error);
    res.status(500).json({
      success: false,
      error: '获取发布任务状态失败'
    });
  }
});

/**
 * GET /api/marketing/publish-tasks
 * 获取发布任务列表
 */
router.get('/publish-tasks', async (req: Request, res: Response) => {
  try {
    const { status, page = 1, pageSize = 20 } = req.query;
    
    let filteredTasks = publishTasks;
    
    // 按状态筛选
    if (status) {
      filteredTasks = filteredTasks.filter(t => t.status === status);
    }
    
    // 按创建时间倒序排列
    filteredTasks.sort((a, b) => new Date(b.created_at).getTime() - new Date(a.created_at).getTime());
    
    // 分页
    const startIndex = (Number(page) - 1) * Number(pageSize);
    const endIndex = startIndex + Number(pageSize);
    const paginatedTasks = filteredTasks.slice(startIndex, endIndex);
    
    res.json({
      success: true,
      data: {
        tasks: paginatedTasks,
        total: filteredTasks.length,
        page: Number(page),
        pageSize: Number(pageSize)
      }
    });
  } catch (error: any) {
    console.error('获取发布任务列表失败:', error);
    res.status(500).json({
      success: false,
      error: '获取发布任务列表失败'
    });
  }
});

/**
 * GET /api/marketing/dashboard
 * 获取营销仪表板数据
 */
router.get('/dashboard', async (req: Request, res: Response) => {
  try {
    const { period = '7days' } = req.query;
    
    // 生成模拟仪表板数据
    const dashboard = {
      overview: {
        total_campaigns: campaigns.length,
        active_campaigns: campaigns.filter(c => c.status === 'active').length,
        total_content: contents.length,
        pending_tasks: publishTasks.filter(t => t.status === 'pending').length
      },
      performance: {
        total_reach: Math.floor(Math.random() * 1000000) + 500000,
        total_engagement: Math.floor(Math.random() * 100000) + 50000,
        engagement_rate: (Math.random() * 5 + 3).toFixed(2),
        conversion_rate: (Math.random() * 3 + 1).toFixed(2)
      },
      platform_stats: {
        douyin: {
          followers: Math.floor(Math.random() * 100000) + 50000,
          posts: Math.floor(Math.random() * 500) + 100,
          engagement_rate: (Math.random() * 8 + 4).toFixed(2)
        },
        xiaohongshu: {
          followers: Math.floor(Math.random() * 80000) + 30000,
          posts: Math.floor(Math.random() * 300) + 80,
          engagement_rate: (Math.random() * 10 + 5).toFixed(2)
        }
      },
      trending_topics: [
        { topic: '新手妈妈必备', heat: 95 },
        { topic: '宝宝辅食制作', heat: 88 },
        { topic: '育儿神器推荐', heat: 82 },
        { topic: '亲子互动游戏', heat: 76 },
        { topic: '母婴好物分享', heat: 71 }
      ],
      recent_activities: [
        {
          type: 'publish',
          content: '发布了新内容《新手妈妈必备好物》',
          platform: 'douyin',
          time: new Date(Date.now() - 2 * 60 * 60 * 1000).toISOString()
        },
        {
          type: 'campaign',
          content: '创建了新活动《母婴节营销活动》',
          platform: 'all',
          time: new Date(Date.now() - 4 * 60 * 60 * 1000).toISOString()
        },
        {
          type: 'analytics',
          content: '生成了周度分析报告',
          platform: 'all',
          time: new Date(Date.now() - 6 * 60 * 60 * 1000).toISOString()
        }
      ]
    };
    
    res.json({
      success: true,
      data: dashboard
    });
  } catch (error: any) {
    console.error('获取营销仪表板数据失败:', error);
    res.status(500).json({
      success: false,
      error: '获取营销仪表板数据失败'
    });
  }
});

/**
 * POST /api/marketing/sync-platforms
 * 同步平台数据
 */
router.post('/sync-platforms', async (req: Request, res: Response) => {
  try {
    const { platforms } = req.body;
    
    if (!platforms || !Array.isArray(platforms)) {
      return res.status(400).json({
        success: false,
        error: '缺少平台参数'
      });
    }
    
    // 模拟同步过程
    const syncResults = platforms.map((platform: string) => ({
      platform,
      success: Math.random() > 0.1, // 90%成功率
      synced_at: new Date().toISOString(),
      data_count: Math.floor(Math.random() * 100) + 10
    }));
    
    res.json({
      success: true,
      data: {
        sync_results: syncResults,
        total_synced: syncResults.filter(r => r.success).length,
        sync_time: new Date().toISOString()
      }
    });
  } catch (error: any) {
    console.error('同步平台数据失败:', error);
    res.status(500).json({
      success: false,
      error: '同步平台数据失败'
    });
  }
});

export default router;